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Sky-Watcher Skymax 200DX Maksutov-Cassegrain Optical Tube
1,399.00CHF
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Sky-Watcher Skymax 200DX is a 200 mm f/10 aplanatic Maksutov-Cassegrain optical tube designed for high-resolution observation and full-frame astrophotography. Its 44 mm image circle, Zero Shift focuser and built-in cooling fan meet the requirements of demanding imaging configurations.
Sky-Watcher Skymax 200DX combines an aplanatic Maksutov-Cassegrain design with a 200 mm effective aperture, a 2000 mm focal length and an f/10 focal ratio. This optical tube is intended for high-resolution visual observation and astrophotography.
Optical design is optimised to suppress off-axis coma effectively and produce a flat field from the centre to the edge. This integrated correction allows the tube to be used without an additional field corrector in its native configuration.
A 44 mm image circle supports cameras equipped with large sensors and full-frame configurations. Field flatness and aberration correction are maintained across this complete image diameter.
A 200 mm aperture and 2000 mm focal length reveal fine surface details on the Moon and planets. This combination is also suitable for imaging and observing compact deep-sky objects.
Optional 0.7x focal reducer and flattener is available separately under product code 20118. This accessory provides an f/7 focal ratio for a wider field and shorter exposure times.
Built-in 12 V cooling fan and ventilated primary mirror cell accelerate thermal equilibration. This airflow helps the optical tube reach operating temperature before observation or imaging.
A 70 mm secondary mirror is combined with a baffle that increases the total central obstruction diameter to 94 mm. The complete central obstruction, including the baffle, represents 22 percent by area.
Zero Shift focuser is designed to limit image movement during focusing. The focusing knob incorporates a patented focus distance indicator covering a range from 38 m to infinity.
A 75 mm dovetail bar provides the mounting interface. Two finderscope shoes are fitted to the optical tube for compatible accessories.
Compact, balanced construction is suitable for permanent observatory installations or portable imaging configurations when paired with an equatorial mount of appropriate capacity.
Delivery includes the optical tube only, without accessories.
Technical specifications
• Optical design: aplanatic Maksutov-Cassegrain
• Effective aperture: 200 mm
• Focal length: 2000 mm
• Focal ratio: f/10
• Image circle: 44 mm
• Compatibility: full-frame sensors
• Off-axis coma correction
• Flat field from centre to edge
• Built-in cooling fan: 12 V
• Primary mirror cell: ventilated
• Secondary mirror diameter: 70 mm
• Total central obstruction diameter with baffle: 94 mm
• Total central obstruction area with baffle: 22 percent
• Focusing system: Zero Shift
• Focus distance indicator: patented
• Focusing knob indicated range: 38 m to infinity
• Dovetail bar: 75 mm
• Finderscope shoes: two
• Optional 0.7x focal reducer and flattener: available separately
• Optional 0.7x reducer and flattener product code: 20118
• Focal ratio with the 0.7x reducer: f/7
• Optical tube length: 665 mm
• Optical tube diameter: 235 mm
• Optical tube weight: 12 kg
• Supplied accessories: none
Sky-Watcher Skymax 200DX tube optique
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Sky-Watcher Skymax 200DX is a 200 mm f/10 aplanatic Maksutov-Cassegrain optical tube designed for high-resolution observation and full-frame astrophotography. Its 44 mm image circle, Zero Shift focuser and built-in cooling fan meet the requirements of demanding imaging configurations.